Bacterial leaf blight (BLB) disease is caused by Xanthomonas oryzaeyv. oryzae (Xoo), which leads to severe rice yield losses in many Asian and African countries. Xoo secretes special proteins called TALs (Transcription activator like effectors), which bind to specific cis elements located on the promoter region of host genes and activates them to serve its growth and infection in plants. In this study, we studied the TALome of three representative Vietnam Xoo isolates. Isolate VXO_11 carries the tai gene encoding the proteins AvrXa7 and PthXo2B; while VXO_60 and VXO_96 carry genes encoding TAL AvrXa7 and PthXo2A. Four crRNA (CRISPR RNA) were designed using bioinformatics tools for targeting two host DNA sequences recognized by TAL AvrXa7 and PthXo2A on the OsSWEET13anA OsSWEET14 promoters of the TBR225 rice variety. Designed crRNAs were in-serted into BtgTX and Bsa\ sites, respectively, of pENTR4 vector; sgRNA exression construct then ligated into pCas9 vector for generating the T-DNA construct expressing the TBR225 OsSWEET13 and OsSWEET14eảìteả CRISPR/Cas9 (Clustered regularly interspaced short palindromic repeats/CRISPR associated protein 9) complex. This will be the premise for the generation of new rice varieties TBR225 with broad-spectrum resistance to BLB using CRIPSR/Cas9 technology.